A Texas police sergeant has been fired after video captured his command to a rookie officer to use a Taser on a woman who had called for help.

Sgt. Kenneth Pierce, a 22-year veteran in Fort Worth, was with the unidentified younger officer in August when they responded to a home where a woman said she was threatened.

A 12-minute clip captured with the rookie’s body camera saw them confront both the caller and a man. The officers started a physical confrontation when she would not give her ID and insisted she had done nothing wrong.

The woman was shocked with the Taser after Pierce gave the order, with the younger officer later threatening to Taser her twice more and saying “I don't give a f--- right now” as she was led to a police cruiser.

“I’m confident that everyone who sees this video, including members of this department, will agree this supervisor’s response and subsequent behaviors are absolutely unacceptable,” Forth Worth Police Chief Joel Fitzgerald said Monday at a press conference announcing Pierce’s termination.

Fitzgerald said that Pierce started the physical struggle because he became “impatient,” though a lawyer for the sergeant disagreed that he had escalated the situation and told the Fort Worth Star-Telegram he would appeal his firing.

The chief applauded the department’s internal review system for its work in the case, which led to dropped charges against the woman.

It was not clear what charge she would have originally been arrested under, or whether the officer who used the Taser will also face discipline.